The best way to make sure the world is a better place first of all is by believing in God and trusting on his word.
God is love, so if we believe in God, we will come to the understanding that we as his children must love one another. The world will be a more peaceful place if we all love each other, unite, preach peace.
God loves everyone equally, so he is not partial. We find out that we are blessed when we love people. We live a life filled with peace of mind when we do not bear grudges against people.
The earlier we come to the realization that the war against each other is of no use, the better for us and the generation yet unborn.
We do not protest about peace and change because we have the capacity to make peace starting with our selves and the environment we find ourselves.
Love is a universal language thereby it is love that can bring about peace and the ability in making the world a better place for all to live in.